Oyster Enterprises II Acquisition Corp
OYSER- Exchange
- Nasdaq
- Industry
- Blank Checks
- SEC CIK
- 0002042182
No open-market purchases or sales by Oyster Enterprises II Acquisition Corp insiders were filed in the last 90 days; 46 institutions reported holding it in 13F filings for Q2 2026, worth $2.68M in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Oyster Enterprises II Acquisition Corp as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 45
- +1 vs. Q3 2025
- Shares held
- 22.2M
- +2.33M (+11.8%) vs. Q3 2025
- Total value
- $4.40M
- +$1.07M (+32.0%) vs. Q3 2025
- New holders
- 6
- 7 more added
- Sold out
- 5
- 7 more reduced
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting OYSER on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 46 | $2.68M |
| Q1 2026 | 44 | $3.11M |
| Q4 2025 | 45 | $4.40M |
| Q3 2025 | 44 | $3.33M |
| Q2 2025 | 0 | $0 |
| Q1 2025 | 0 | $0 |
| Q4 2024 | 0 | $0 |
| Q3 2024 | 0 | $0 |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Oyster Enterprises II Acquisition Corp; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Bank of America Corp | 100 | $20 | 0.00% | 00.0% | Unchanged |
| Gritstone Asset Management LLC | 49,430 | $9.89K | 0.01% | 00.0% | Unchanged |
| 683 Capital Management, LLC | 75,000 | $15.0K | 0.00% | 00.0% | Unchanged |
| Walleye Capital LLC | 75,000 | $15.0K | 0.00% | +75,000 | New |
| DLD Asset Management, LP | 106,092 | $21.2K | 0.00% | +106,092 | New |
| Mint Tower Capital Management B.V. | 150,000 | $30.0K | 0.00% | 00.0% | Unchanged |
| Decagon Asset Management LLP | 183,091 | $36.6K | 0.02% | 00.0% | Unchanged |
| Gabelli Funds LLC | 199,300 | $39.9K | 0.00% | 00.0% | Unchanged |
| MMCAP International Inc. SPC | 200,000 | $40.0K | 0.00% | 00.0% | Unchanged |
| Berkley W R Corp | 228,022 | $45.6K | 0.00% | 00.0% | Unchanged |
| Schonfeld Strategic Advisors LLC | 250,000 | $50.0K | 0.00% | −25,000−9.1% | Reduced |
| Whitebox Advisors LLC | 250,000 | $50.0K | 0.00% | 00.0% | Unchanged |
| Alpine Global Management, LLC | 250,000 | $50.0K | 0.01% | 00.0% | Unchanged |
| Gabelli & Co Investment Advisers, Inc. | 250,700 | $50.1K | 0.01% | 00.0% | Unchanged |
| Context Capital Management, LLC | 250,782 | $50.2K | 0.00% | 00.0% | Unchanged |
| Clear Street Group Inc. | 264,071 | $52.8K | 0.00% | −2,000−0.8% | Reduced |
| Bulldog Investors, LLP | 312,349 | $54.0K | 0.01% | +112,349+56.2% | Added |
| Parallax Volatility Advisers, L.P. | 293,600 | $58.7K | 0.00% | −272,392−48.1% | Reduced |
| Periscope Capital Inc. | 300,000 | $60.0K | 0.01% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 346,312 | $69.3K | 0.00% | +346,312 | New |
| MYDA Advisors LLC | 349,000 | $69.8K | 0.02% | +349,000 | New |
| Polar Asset Management Partners Inc. | 400,000 | $80.0K | 0.00% | 00.0% | Unchanged |
| Davidson Kempner Capital Management LP | 400,000 | $80.0K | 0.00% | 00.0% | Unchanged |
| Alberta Investment Management Corp | 400,000 | $80.0K | 0.00% | +400,000 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 450,000 | $90.0K | 0.00% | 00.0% | Unchanged |
| Shaolin Capital Management LLC | 450,000 | $90.0K | 0.00% | 00.0% | Unchanged |
| Aristeia Capital LLC | 454,000 | $90.8K | 0.00% | 00.0% | Unchanged |
| Rivernorth Capital Management, LLC | 499,872 | $100.0K | 0.00% | +102,372+25.8% | Added |
| Moore Capital Management, LP | 500,000 | $100.0K | 0.00% | 00.0% | Unchanged |
| Hudson Bay Capital Management LP | 501,530 | $100.3K | 0.00% | −195,000−28.0% | Reduced |
| Radcliffe Capital Management, L.P. | 551,079 | $110.2K | 0.01% | +495,971+900.0% | Added |
| Toronto Dominion Bank | 623,500 | $124.7K | 0.00% | +221,865+55.2% | Added |
| Millennium Management LLC | 631,000 | $126.2K | 0.00% | +182,500+40.7% | Added |
| Harraden Circle Investments, LLC | 705,326 | $141.1K | 0.03% | +522,064+284.9% | Added |
| Verition Fund Management LLC | 768,752 | $153.8K | 0.00% | 00.0% | Unchanged |
| Glazer Capital, LLC | 780,062 | $156.0K | 0.00% | −70,766−8.3% | Reduced |
| Westchester Capital Management, LLC | 850,000 | $170.0K | 0.01% | +850,000 | New |
| Tenor Capital Management Co., L.P. | 900,000 | $180.0K | 0.00% | 00.0% | Unchanged |
| Linden Advisors LP | 1,000,000 | $190.1K | 0.00% | 00.0% | Unchanged |
| Picton Mahoney Asset Management | 1,000,000 | $200.0K | 0.00% | 00.0% | Unchanged |
| LMR Partners LLP | 1,100,000 | $220.0K | 0.00% | 00.0% | Unchanged |
| CNH Partners LLC | 1,138,688 | $227.7K | 0.00% | −346,312−23.3% | Reduced |
| Magnetar Financial LLC | 1,300,000 | $260.0K | 0.00% | 00.0% | Unchanged |
| Meteora Capital, LLC | 2,309,640 | $461.9K | 0.04% | −2,463−0.1% | Reduced |
| CSS LLC | 66,340 | – | – | +10,340+18.5% | Added |
| Mangrove Partners | 0 | $0 | 0.00% | −450,000−100.0% | Sold out |
| Mizuho Securities USA LLC | 0 | $0 | 0.00% | −50,100−100.0% | Sold out |
| Heights Capital Management, Inc | 0 | $0 | 0.00% | −27,483−100.0% | Sold out |
| Highbridge Capital Management LLC | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −100−100.0% | Sold out |